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Josef Válek

PROFILE

Josef Válek

Worked on backend and API integration tasks across topmonks/hlidac-shopu and apify/apify-client-js, focusing on data quality and model alignment. In topmonks/hlidac-shopu, addressed three critical bugs in JavaScript and TypeScript that improved historical pricing accuracy, enhanced daily data ingestion reliability, and cleaned up runtime output for better observability. For apify/apify-client-js, delivered a TypeScript feature that extended the WebhookDispatch API data model to include optional event-specific data, ensuring backward compatibility and supporting richer integrations. The work emphasized robust debugging, code cleanup, and careful schema evolution, resulting in more reliable data workflows and improved developer experience for downstream consumers.

Overall Statistics

Feature vs Bugs

25%Features

Repository Contributions

5Total
Bugs
3
Commits
5
Features
1
Lines of code
20
Activity Months2

Work History

July 2025

1 Commits • 1 Features

Jul 1, 2025

Monthly summary for 2025-07: Focused on aligning client-side data models with API responses in apify/apify-client-js. Delivered a data-model enhancement to WebhookDispatch by adding an optional eventData field, enabling access to event-specific data when available. This preserves backward compatibility while enabling richer downstream integrations.

November 2024

4 Commits

Nov 1, 2024

November 2024 for topmonks/hlidac-shopu focused on data quality, reliability, and maintainability for Notino pricing data workflows. Delivered three critical bug fixes that improve historical price accuracy, daily data ingestion, and runtime cleanliness. These changes reduce pricing discrepancies, prevent data ingestion issues, and simplify monitoring, enabling faster troubleshooting and more confident business decisions.

Activity

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Quality Metrics

Correctness88.0%
Maintainability92.0%
Architecture84.0%
Performance84.0%
AI Usage20.0%

Skills & Technologies

Programming Languages

JavaScriptTypeScript

Technical Skills

API IntegrationBackend DevelopmentCode CleanupDebuggingTypeScript Development

Repositories Contributed To

2 repos

Overview of all repositories you've contributed to across your timeline

topmonks/hlidac-shopu

Nov 2024 Nov 2024
1 Month active

Languages Used

JavaScriptTypeScript

Technical Skills

Backend DevelopmentCode CleanupDebugging

apify/apify-client-js

Jul 2025 Jul 2025
1 Month active

Languages Used

TypeScript

Technical Skills

API IntegrationTypeScript Development